00967cam a22002891 4500 4062359 BD-DhUL 20140916152526.0 831007s1967 gw a b 000 0 eng 67013673 GDB*** DLC/ICU ICU DLC BD-DhUL engrus QC20 .L2613 530.15 LAS Lavrentʹev, M. M. (Mikhail Mikhaĭlovich) O nekotorykh nekorrektnykh zadachakh matematicheskoǐ fiziki. English Some improperly posed problems of mathematical physics / M.M. Lavrentiev Berlin, Springer-Verlag, 1967. 72 p. : illus. ; 24 cm. Springer tracts in natural philosophy, v. 11 Bibliography: p. [70]-72. Mathematical physics. Springer tracts in natural philosophy ; v. 11. 7 cbc orignew u ocip 19 y-gencatlg ddc BK 10929 10929 0 0 ddc 0 530_150000000000000_LAS 0 NFIC 19526 DUSL DUSL GEN 1976-08-17 Gift 530.15 LAS A140828 2014-09-16 1 2014-09-16 BK 0 0 ddc 0 530_150000000000000_LAS 0 NFIC 19528 DUSL DUSL GEN 1976-08-17 Gift 530.15 LAS A140829 2014-09-16 2 2014-09-16 BK